An image-encrypting algorithm based on bit operation
Guan Bao · Journal of Zhejiang University of Technology · 2003
In this paper, a new method for digital image encryption is proposed. Combined with the Logistic mapping in non\|linear dynamics systems and the XOR operation, the proposed algorithm is designed. Firstly, a chaotic sequence is created using the Logistic mapping with the input key. An assistant data sequence is obtained after the chaotic sequence is properly processed. With this data sequence, the image data are processed byte by byte with the XOR operation. Then an encrypted image is resulted. The decrypting operation is the reverse process of encryption. The experimental results indicate that the proposed algorithm can get satisfying effect. Finally, the characteristics of the algorithm are summarized.